Handle GPL library libs.jshell.compile

Details

Description

libs.jshell.compile/external/nb-jshell-license.txt does not contain the version nb-7.2 in its name
libs.jshell.compile/external/nb-jshell-license.txt has a GPL-family license but is either not covered by the Classpath Exception, or is not compile-time/optional only.
libs.jshell.compile/external/nb-jshell-license.txt has no Files header and no corresponding nb-jshell.jar or nb-jshell.zip could be found
libs.jshell.compile/external/jshell.jar does not appear to include a version number
libs.jshell.compile/external/jshell.jar is not associated with any license file